Brake mechanism



June 23, 1925. 1,543,467

H. l. WRIGLEY BRAKE MECHANISM Filed Nov. be, 1924 Pme am@ 2s. 1925. 1,543,462*

.oeffnen f.orri'cla;. y

Henn-Y, 1. WRIGLBL or. CHICAGO, ;1LLrNoIS-,AsSIGNoR iro -LUNIVERSAL DRAM ena-n f ,n.zrrAenmENrieo., A- ,ooRPQRA'1iION-or ILLINoIs.

.BRAKE ,.MIJGHANISM. ,npplicationiled'November 2.8,1924.` uSerial 'No."52,535.

Tonallwhom z'inayconceror: avise. The openingfin the sidewallresult- Be it knoivn that LJHENRY I. fW-RIGLEY, ingffrom lcutting"away a portion of the saine a citizen. ett-heUnitedrStates, and resident aiords'accessto theinterior-otthe. casing of` Cliicago, county offGook, and -fzltfate of tio-facilitate passingthe chain therethrough,

5 llllinoisyliave invented 'certain new-and iisein attaching it to the anchor member. y 60 iul linpi'oven-ientsliu BrakeMeehan-ism,lot Tl-ie -lower .avail 121 of the'ca'sing' 18 is ivhich the following is-a speci-tiei'ition, and provided atits outercndn'ith sloten-2t and which are ill'ustratediin'the accompanying 25-at1tlie sidesltl-ie-reof. :The slots'are-ot drawings, Alio-rn'iinga 'part thereof. snfiicientWidth-to receive l(il-ink ot theechain 10 vTliisinvention relates to b1'a-les ,an`d more avlien-theflinl'is turned liat-v'iee. The slot G particularly "to brake -mechanism 'for rail- 25 is deeper tha-nithe Vslot 2li. lreterablv ivay cars. f thedilerenceinfthe'lengths ofthe-slots v@ne o'ttlie objectso'ftlie inventionl'isftl'ie eqiialto oneLlial-the-llenfrtlr offener-)it the provision of; braflreY mechanism `having an links of the chain lf'avherebyfa correspondn l5 anchor member provided-With new andiniing-adjustment"in-theefectivelength ofthe 70 proved vmeans Ifor -adjnstablyattaching the chain inay'be'obtained. 'fi-tisfdesired to brake chain thereto. Sliorten the etilective length fot -the chain Otherobjects of theinvention-are the pro- 'liromrthe l position shown in Figs. I1 an-fd .3,

visi-on off ane-iv andiniproved anchor memthe-link is vnievd into-the AVslot 24. 1i

20 ber thatis cheapto manufacture, siinple'in it is desiredto lengthen tlieetifective length construction, eiticie-ntinnse, and that `is -not of the chain. only the vdistance o'ta halt link, likely to become breken, -tlerangedor wget saidlink 2G-is-engaged in:thesletQe.`

out'ot order. The chain 13 .extendsabout alpower. trans- Other 'an'd" {nir-theryobjerts-'andadvantages mitt-ing'lever 27liav-.ing .a1sliort .2111111.28 and ofthe invention vill-appear ifroni the Picola longrarm29. .'lliielever is intovidfeidavith Se lowing desc1'ipti ii,=takeirin Connect-ionivfith a groove Vfor receivimfo' 4said chain. The

the accompanyiiigr drawings, in which chain engagingqtaee ot' thesliortiarin 42iis Figi'. l is-.an end elevation ot' vaportion. ot carvedaeshoivn inFi-g'. 1; Theilever 2T is :i railway `car showing; my invention in posipivoted in a forked end. ofi-the.bizafkeinodl :an @on {hm-.wilg asaltr 31, /tfheip'ivot .31 being aarranfgredeccen- Fig, f3 i5 a Sid@ ,altyd-,ion thereof, with tricto said curve. The long arm 29 is in parte removed; and the 'torni of asegnient, and thc chain 13 is Fig. 3 jg L perspective vcw of the anchorattached to a radial face of said segment ing:y device. atthe rear thereof, as by means of the "cis,

:i5 Jn the drawings, the reference character bolt 32- 90 S) designates a car end to which is journaled The parts are so arranged that the initial a brake stad 10. On the lower end of the turning of the brake statt 10 Will cause the brake statt is mounted a conical drinn 11 chain 13 to Wind on the greatest diameter provided with a spiral 2groove 12 in which of the conical drinn 11 and, simultaneously il one end of a brake chain 13 is adapted to operating on the short arm 2S of the lever 95 be wound. 27, will cause the long' arm 29 to rapidly The chain is connected to the brake statt tak@ UD the SlCl D 15110 brake Operating or drum in any suitable manner. The op- DleClllllSH- posite end o'j the chain is adjustably con- During the linal turning movement of the nected to an anchor member 14: secured adbrake Staff 10, N vhen the brake shoes have 100 liacent one end of the car 9, in any suitable come into engagement With the Wheels, the manner as by means of bolts or rivets en` lever 27 will have been reversed, the chain gaging the opening 15 in the plate 16. 13 will be Winding on the stati 1() land op- The anchor member 14 comprises. a base erating on the long arni of the lever, thus 5U plate 16 provided With an off-set extension giving the greatest mechanical advantage in 105 forming a casing 18 open at each end. The applying the brakes. It is necessary in thistop Wall of the casing,- and the adjacent iiparrangementthat the parts be so arranged per portion of the outer` Wall may, if dethat when the chain 13 is being Wound on sired, be cut away, as at 19,in order to the largest diameter of the drum it will be lighten the device, although itmay be otheroperating on the short arm of the lever 27 110 and vice versa. In order to accomplish this result it is necessary that the effective length of the chain 13 be predetermined for any particular installation. This is accomplished by lengthening or shortening the effective length of the chain by means of the anchoring device as described above.

Suitable means are provided for preventing the accidental disengagement of the chain 13 from the slots 24 and 25. Any suitable means may be provided for this purpose. As disclosed on the drawing, a cotter pin or key 33 extending through the rear end of the casing 18 is employed for this purpose.

It is thought from the foregoing taken in connection with the accompanying drawings that the construction and operation of my device will be apparent to those skilled in the art, and thatvarious changes in size, shape, proportion and details of construction may be made without departing from the spiritand scope of the appended claims.

I claim as my invention:

1. An anchoring device for brakes comprising a casing having an axial bore, for receiving one end ot a brake chain, the wall of said casing being provided with a slot open at one end for engaging a link of a brake chain for anchoring the same, and means for securing said casing to a car.

2. In combination, an anchoring device comprising a casing having an opening therein, one ot the walls of said'opening being provided with slots of unequal depths, a brake chain in said opening, a link of said chain being adapted to engage either of said slots `for securing one end of said chain to said anchoring device.

An anchoring device for railway brake chains comprising a casing having an opening in 'its inner wall for the reception of a brake chain, the wall or" said casing being provided with slots of unequal distances from said forward wall, the difference in said distances being substantially equal to one half the length of one of the links of said chain, and means for attaching said device to a support.

4. An anchoring device for a railway brake chain comprising a casing having a bore extending therethrough for the reception of said chain, the casing being provided with slots of unequal length, adjacent each side of the bottom wall thereof, for receiving a link of said chain tlatwise for adjusting the effective length of said chain, and a pin extending across said bore for preventing the accidental release of said chain from said device.

5. An anchoring device for chains 'for railway brakes comprising a casing having an opening in the inner wall thereof for the reception of a brake chain, and means integral with said casing for adjustably connecting an individual link of said chain to said casing.

6. An anchoring device for railway brake chain comprising a casing having a bore extending therethrough for the reception of one end ol said chain, said casing being provided with a plurality of slots of unequal length for receiving a link of said chain flatwise for adjusting the eective length ot said chain, and-means for preventing accidental disengagement of said chain from said device.

In testimony whereof I aliiX' my signature.

HENRY I. VVR-IGLE Y. 

